Diagnostic Code 8018 · 38 CFR §4.124a
Multiple sclerosis (MS) is a chronic autoimmune disease where the immune system attacks the protective covering (myelin) of nerve fibers in the brain and spinal cord. This disrupts nerve signal transmission, causing a wide range of symptoms including fatigue, numbness, weakness, vision problems, difficulty walking, bladder dysfunction, and cognitive changes. MS is particularly important for veterans because the VA provides a seven-year presumptive period — if MS manifests within seven years of discharge from active duty, it is presumed to be service-connected. The minimum rating for MS is 30%.
| Rating | Criteria |
|---|---|
| 100% | |
| 60% | |
| 30% |
Neurologist's diagnosis of MS with supporting criteria (McDonald criteria), Brain and spinal MRI showing demyelinating lesions, Cerebrospinal fluid analysis if performed (oligoclonal bands), Evoked potential testing results, Treatment records for disease-modifying therapies, Documentation showing MS manifested within seven years of discharge (for presumptive connection)